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Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +02001#!/bin/bash
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01002# SPDX-License-Identifier: GPL-2.0
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +02003#
4# Multiqueue: Using pktgen threads for sending on multiple CPUs
5# * adding devices to kernel threads
6# * notice the naming scheme for keeping device names unique
7# * nameing scheme: dev@thread_number
8# * flow variation via random UDP source port
9#
10basedir=`dirname $0`
11source ${basedir}/functions.sh
12root_check_run_with_sudo "$@"
13#
14# Required param: -i dev in $DEV
15source ${basedir}/parameters.sh
16
Tariq Toukan69137ea2017-06-15 19:07:21 +030017[ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely
18
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020019# Base Config
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020020[ -z "$CLONE_SKB" ] && CLONE_SKB="0"
21
22# Flow variation random source port between min and max
Daniel T. Lee723d2902019-10-05 17:25:06 +090023UDP_SRC_MIN=9
24UDP_SRC_MAX=109
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020025
26# (example of setting default params in your script)
Martin KaFai Lau0f06a672016-07-20 15:48:43 -070027if [ -z "$DEST_IP" ]; then
28 [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1"
29fi
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020030[ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff"
Daniel T. Lee40f843e2019-10-05 17:25:09 +090031if [ -n "$DEST_IP" ]; then
32 validate_addr${IP6} $DEST_IP
33 read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP)
34fi
Daniel T. Lee6e32a742019-06-29 22:33:58 +090035if [ -n "$DST_PORT" ]; then
Daniel T. Lee723d2902019-10-05 17:25:06 +090036 read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT)
37 validate_ports $UDP_DST_MIN $UDP_DST_MAX
Daniel T. Lee6e32a742019-06-29 22:33:58 +090038fi
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020039
40# General cleanup everything since last run
Igor Russkikhc8fd4852021-03-11 11:32:53 +010041[ -z "$APPEND" ] && pg_ctrl "reset"
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020042
43# Threads are specified with parameter -t value in $THREADS
Tariq Toukane0e16672017-06-15 19:07:22 +030044for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020045 # The device name is extended with @name, using thread number to
46 # make then unique, but any name will do.
47 dev=${DEV}@${thread}
48
49 # Add remove all other devices and add_device $dev to thread
Igor Russkikhc8fd4852021-03-11 11:32:53 +010050 [ -z "$APPEND" ] && pg_thread $thread "rem_device_all"
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020051 pg_thread $thread "add_device" $dev
52
53 # Notice config queue to map to cpu (mirrors smp_processor_id())
54 # It is beneficial to map IRQ /proc/irq/*/smp_affinity 1:1 to CPU number
55 pg_set $dev "flag QUEUE_MAP_CPU"
56
57 # Base config of dev
58 pg_set $dev "count $COUNT"
59 pg_set $dev "clone_skb $CLONE_SKB"
60 pg_set $dev "pkt_size $PKT_SIZE"
61 pg_set $dev "delay $DELAY"
62
63 # Flag example disabling timestamping
64 pg_set $dev "flag NO_TIMESTAMP"
65
66 # Destination
67 pg_set $dev "dst_mac $DST_MAC"
Daniel T. Lee40f843e2019-10-05 17:25:09 +090068 pg_set $dev "dst${IP6}_min $DST_MIN"
69 pg_set $dev "dst${IP6}_max $DST_MAX"
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020070
Daniel T. Lee6e32a742019-06-29 22:33:58 +090071 if [ -n "$DST_PORT" ]; then
72 # Single destination port or random port range
73 pg_set $dev "flag UDPDST_RND"
Daniel T. Lee723d2902019-10-05 17:25:06 +090074 pg_set $dev "udp_dst_min $UDP_DST_MIN"
75 pg_set $dev "udp_dst_max $UDP_DST_MAX"
Daniel T. Lee6e32a742019-06-29 22:33:58 +090076 fi
77
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020078 # Setup random UDP port src range
79 pg_set $dev "flag UDPSRC_RND"
Daniel T. Lee723d2902019-10-05 17:25:06 +090080 pg_set $dev "udp_src_min $UDP_SRC_MIN"
81 pg_set $dev "udp_src_max $UDP_SRC_MAX"
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020082done
83
Igor Russkikhc8fd4852021-03-11 11:32:53 +010084if [ -z "$APPEND" ]; then
85 # start_run
86 echo "Running... ctrl^C to stop" >&2
87 pg_ctrl "start"
88 echo "Done" >&2
Jesper Dangaard Brouer282fb582015-05-21 12:17:48 +020089
Igor Russkikhc8fd4852021-03-11 11:32:53 +010090 # Print results
91 for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do
92 dev=${DEV}@${thread}
93 echo "Device: $dev"
94 cat /proc/net/pktgen/$dev | grep -A2 "Result:"
95 done
96else
97 echo "Append mode: config done. Do more or use 'pg_ctrl start' to run"
98fi